test. >> barack obama didn't perform that well until late and romney didn't perform the campaign well. campaign management is more important than an individual candidate's performance. >> woodruff: from boston, hari sreenivasan reports on a city- wide effort to keep kids engaged in education through meaningful work experiences. >> we're starting at the very early ages to try to help young people speak. that is a direct relationship to being successful in school and being successful in your life >> woodruff: and we close out 2012 with two takes on history, first, a look at the emancipation proclamation on the eve of the 150th anniversary of president lincoln's action to end slavery and the civil war. >> woodruff: plus michael beschloss and richard norton smith talk about potential historical turning points of the past year. that's all ahead on tonight's newshour. moving our economy for 160 years. bnsf, the engine that connects us. >> and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. >> an